Improvement in adjustable eaeeow



J. C. CENTER.

Harrow.

No. 77,354. Patented April 28,1868.

, jun

F} H! 5B" UWAU 3 4 ZE IE I] N,PETF-RS, PHOTO-UTHOGRAPHER. WASHiNGYON. D C

.I. C. CENTER, OF BATH, ILLINOIS.

Letters Patent No. 77,354, dated April 28, 1868.

IMPROVEMENT 'IN ADJUSTABLE HARROW,

an gtlgthltlt merit in in ilgttt Enters stem zmh making and Hi figs same.

TO ALL WHOM IT MAY CONCERN:

Be it known that I, J. C. CENTER, of Bath, in the county of Mason, and State of Illinois, have invented a new and nseful Adjustable.Harrow; and I do hereby declare that the following is a. full and exact description thereof, reference being had to the accompanying drawings, making part of this specification, in which- Figure 1 is the plan,'and Y Figure 2 rear side elevation of the barren.

Figures 3 and 4 are sections of'hinges.

Similar letters of reference in the several figures denote similar parts of the machine.

The natureof my invention consists in a draught-beam or beams, to which barrow-frames, each consisting,

of two arms or beams, are so hinged and so arranged as to form an adjustablelharrow. It consists also in the peculiar arrangement of the hinges connecting several parts of the said harrow, as also in the mode of adjusting the-said parts.

To enable others skilled in the art to m'ake. and use my invention, I will'proceed to describe its construction and operation.

A is a'draught-beam. B B and C C are the arms-or frame-beams, forming triangles with beam A. D D

v are the hinges, connecting beams B B and C C with beam A, by means ofstationary bolt d and a movable bolted Said hinges consist of a square case, E, and two pairs ofopen flanges, F F, the beam A. passing through the casc'E, and bolted fast to it, while beams B C and B C are put in and bolted at their ends to the open flanges F F, so as to freely revolve around the boltsff. Beams B and B, as also C and C, are connected by simildr hinges, G G, at their ends, the said hinges consisting also of a square case, with but onerpair of flanges, so that B and C pass through the square; cases of those-hinges, and are bolted fast to them, while beams B and C are'bo'lted to the flanges, at their ends, and can revolve around the bolts. The beam A is provided with several holes, m m, for the movable bolt d, the change of place of which adjusts the harrow for different widths. Frame-beams B B and C C are provided with harrowing-teeth, and the beam A may be provided with a few teeth also. A hook, H, or some other suitable device, is secured to the fore end of the beam A, to hitch the horses. I I It iscevident, from the above description that by-changing-places of the bolt 01, along the draught-beam 'A, the frames-of. the burrow can be spread out'more or less, thus adjusting the harrow to any desirable width.

It is obvious that if desired, there ma be two draught-beams 'nsedthcse-beams being hinged to each other-the side beams being attached on one side ,to one of the draught-beams, and those on the other side to the other draught-beam, and thus permit the side beams to have a vertical movement also, to adapt the barrow to uneven ground, or allow it to enter hollows and pass alongon ridges, without raising a portion of the teeth from the ground, the sameas is common in ordinary hinged barrows, the adjustment of the wings or side beams being the sameas already described.

What I claim as" my invention, and desire to secure by Letters Patent, is-- Y I I 1. The harrow, consisting of one or' twodraught-heams, A A, and frame-beams B B and C C", hinged together as described, and arranged and oporatingsubstantially as set forth.

2. The hinges DD and G G, constructed asdescribed, in combination and connection with the parts of the burrow, substantially as herein described and specified.

v Y J. C. CENTER.

Witnesses:

WILLIAM R. Brncn,

J. H. MITcnsLL. 

